package com.blazer.d;

public class mxdxdemo02 {
    public static void main(String[] args) {
        Citizen citizen=new Citizen();
        citizen.name="周深";
        citizen.birthday.day=10;
        citizen.birthday.month=2;
        citizen.birthday.year=2022;
        System.out.println(citizen.name+"生日"+citizen.birthday.year+citizen.birthday.month+citizen.birthday.day);

    }
}
